DBG

Debug.

Syntax

DBG{cond} {option}

where:

cond

is an optional condition code.

option

is an optional limitation on the operation of the
hint. The range is 0-15.

Usage

DBG is a hint instruction. It is optional whether
they are implemented or not. If it is not implemented, it behaves
as a NOP. The assembler produces a diagnostic message
if the instruction executes as NOP on the target.

DBG executes as a NOP instruction
in ARMv6K and ARMv6T2.

Debug hint provides a hint to debug and related systems. See
their documentation for what use (if any) they make of this instruction.